Observance of Continuous Positive Pressure for the Treatment of Obstructive Sleep Apnea Syndrome (EvOPPC)

  • End date
    May 29, 2025
  • participants needed
  • sponsor
    Centre Hospitalier Universitaire, Amiens
Updated on 29 May 2022
sleep disorder
obstructive sleep apnea


Moderate to severe obstructive sleep apnea syndrome (OSAS) (HAI hyponea apnea index ≥ 15) is a common pathology, which affects 6 to 17% of the general population. The Alaska study, which involved 480,000 apneic patients newly fitted with CPAP, showed that 76.9% of patients were still under treatment for one year, 62.9% after two years, and 52.3% after three years.

All patients who recently diagnosed with OSAS in the Sleep Disorder Unit (Unité de Pathologies du Sommeil et de la Vigilance, CHU d'AMIENS-PICARDIE, FRANCE) and who are requiring CPAP will be included. On the day of their hospitalization for the implementation of the CPAP therapy, patients will answer validated questionnaires to assess their level of motivation and adherence to the initiation of treatment but also to assess their knowledge and understanding of the disease and its treatment. These questionnaires will be repeated at the four-month and one-year follow-up consultations (+/- 21 days).

The aim of the study is to identify the prognostic factors of adherence to CPAP, leading to a better understanding and management of patients with sleep apnea syndrome.

Condition Obstructive Sleep Apnea Syndrome, Continuous Positive Airway Pressure, Adherence, Perception and Beliefs
Treatment questionnary
Clinical Study IdentifierNCT05369845
SponsorCentre Hospitalier Universitaire, Amiens
Last Modified on29 May 2022


Yes No Not Sure

Inclusion Criteria

Adult patient (≥ 18 years old)
Diagnosis of moderate to severe obstructive sleep apnea syndrome OSAS (AHI ≥ 15) by polygraphy or polysomnography performed in our Sleep disorder Unit
Requiring CPAP therapy
Informed consent

Exclusion Criteria

Patient previously treated with CPAP therapy
Psychiatric illness destabilized
Unstable medical condition (i.e. COPD exacerbation, acute cardiac dysfunction, etc.)
Planned obesity or ENT surgery (because CPAP treatment is planned for a short period)
Central or mixed apnea syndrome
Patient under 18 years old
Pregnant, parturient or breastfeeding woman
Patient under guardianship, curatorship or deprived of liberty
Patient participating in another research including an exclusion period still in progress at the pre-inclusion
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